Wire the media archive into the daemon: command, service, and API

media-scrape/test/run.ts

@@ -9,6 +9,7 @@ import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { ScrapeEngine, type FetchPage, type ScrapeBackend } from "../src/engine.js";
 import { extractMedia } from "../src/extract.js";
+import { PuppetBackend } from "../src/puppet-backend.js";
 import { dirSizeBytes, listScrapes, ScrapeStore } from "../src/store.js";
 import type { CoreAttachment, CoreMessage } from "../src/types.js";
 
@@ -258,6 +259,19 @@ void (async () => {
         assert.equal(meta?.pages, 1);
     });
 
+    await test("puppet backend passes before and limit to the core", async () => {
+        const calls: Array<Record<string, unknown>> = [];
+        const backend = new PuppetBackend(async (channelId, limit, options) => {
+            calls.push({ channelId, limit, ...options });
+            return { messages: [message("50")] };
+        });
+
+        const page = await backend.fetchPage("123", "60", 5);
+        assert.equal(page.messages.length, 1);
+        assert.equal(page.messages[0].id, "50");
+        assert.deepEqual(calls[0], { channelId: "123", limit: 5, before: "60" });
+    });
+
     rmSync(root, { recursive: true, force: true });
 
     if (failures > 0) {